CN104205273A - On-load tap changer having at least two vacuum interrupters, and drive for a load changeover switch having at least two vacuum interrupters - Google Patents
On-load tap changer having at least two vacuum interrupters, and drive for a load changeover switch having at least two vacuum interrupters Download PDFInfo
- Publication number
- CN104205273A CN104205273A CN201380015910.0A CN201380015910A CN104205273A CN 104205273 A CN104205273 A CN 104205273A CN 201380015910 A CN201380015910 A CN 201380015910A CN 104205273 A CN104205273 A CN 104205273A
- Authority
- CN
- China
- Prior art keywords
- cam
- tap changer
- load tap
- movable contact
- leading screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0038—Tap change devices making use of vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Transmission Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
An on-load tap changer (1) having at least two vacuum interrupters (3) is disclosed. The on-loader tap changer comprises a selector (7) for selecting a respective winding tap (n, n+1) of a tapped transformer (9), a load changeover switch (5) for changing over from the connected winding tap (n) to the respectively preselected winding tap (n+1), a rotatable drive shaft (11) which is mechanically coupled to the selector (7), and a gear mechanism (15) for operating a moving contact (17) of a respective vacuum interrupter (3). In each case one spindle (19) which can move in a direction of the axis (A) and is coupled to the moving contact (17) can be operated by means of the gear mechanism (15). The invention also relates to a drive for a load changeover switch having at least two vacuum interrupters.
Description
Technical field
The present invention relates to a kind of on load tap changer that comprises at least two vacuum switch tubes.This on load tap changer comprise the selector of the corresponding windings tap for selecting adjustable variable-pressure device, for be switched to from the tapping of connecting corresponding preliminary election tapping have carry a diverter switch, with the rotatable driving shaft of described selector mechanical couplings with for operating the transmission device of movable contact of corresponding vacuum switch tube.The invention still further relates to a kind of for comprising the drive unit that carries diverter switch that has of at least two vacuum switch tubes.
Background technology
The on load tap changer of the beginning type of carrying is disclosed comprehensively and is commonly used in the prior art.They for carrying out without the switching of interrupting between the different tappings of adjustable variable-pressure device.
This on load tap changer includes and carries diverter switch and selector is in its lower section set.Selector is selected adjustable variable-pressure new tapping device, that should be switched to for inactivity ground.Have and carry diverter switch for subsequently fast and without the tapping that is interruptedly switched to new preliminary election from the tapping of connecting.Whole on load tap changer is operated by motor drive in the time switching.The driving shaft of rotation makes selector motion continuously, has the accumulator that carries diverter switch to be tightened up simultaneously.When accumulator is by tension completely, i.e. when tensioning, accumulator release, suddenly discharge its energy and millisecond (ms) time range in operation have a year diverter switch.
Have in the switching of carrying described, have the diverter switch of carrying to complete specific transfer sequence, operate successively or overlappingly different switch contacts and resistance contact head with the time sequencing of determining.Switch contact is used herein to the corresponding tapping of direct connection and load leads, and resistance contact head is for connecting in short-term, connecting by the bridge joint of one or more convert resistances.Advantageously, vacuum switch tube carries with acting on the switch element switching.This has based on stoping to form arc light also thereby stop at oil for there being year use of the vacuum switch tube of switching the oil pollution that carries diverter switch oil, and this is for example described in Germany Patent document DE 195 10 809 C1 and DE 40 11 019 C1 and German openly text DE 42 31 353 A1 and DE 10 2,007 004 530 A1.
This on load tap changer with vacuum switch tube also discloses in text DE 10 2,009 043 171 A1 open in Germany.There is the diverter switch of carrying to there is the driving shaft with at least one cam disc at this.This cam disc has multiple control cams, wherein two control cams that are arranged on cam disc end face have profile non-circular, cams, contact guides the roller being connected with vacuum switch tube via rocking bar in locking manner respectively thereon, and described roller engages the corresponding profile of controlling cam.
Summary of the invention
Therefore, task of the present invention is to provide a kind of space-saving on load tap changer that comprises at least two vacuum switch tubes, and this on load tap changer is guaranteed jamproof, safe simultaneously and had fast to carry and switch and allow operation for a long time.
This task solves by the on load tap changer that comprises at least two vacuum switch tubes according to claim 1.
In addition, it is a kind of for comprising the drive unit that carries diverter switch that has of at least two vacuum switch tubes that task of the present invention is also to provide, and this drive unit is guaranteed errorless, safety and had fast to carry and switch.
This task solves for the drive unit that carries diverter switch that has that comprises at least two vacuum switch tubes by according to claim 9.
The on load tap changer that comprises at least two vacuum switch tubes according to the present invention have the selector of the corresponding windings tap for selecting adjustable variable-pressure device and for be switched to from the tapping of connecting corresponding preliminary election tapping have a diverter switch of carrying.In addition, this on load tap changer also has with the rotatable driving shaft of described selector mechanical couplings with for operating the transmission device of movable contact of corresponding vacuum switch tube.
According to the present invention, be respectively equipped with one on axis direction movable and with the leading screw of movable contact coupling, this leading screw can operate by transmission device.
Should point out, movable contact comprises top plunger and other member for conducting electricity.In addition, each vacuum switch tube has bottom plunger.That is to say, the axial motion of leading screw is delivered on movable contact, and movable contact can be coupled with bottom plunger.Produce thus conductivity and closing of circuit.Open circuit carries out on the contrary, that is, the bottom plunger in movable contact and each vacuum switch tube is spaced apart from each other.Save detailed description and demonstration to the bottom plunger in movable contact and each vacuum switch tube, because this is disclosed in the prior art and is common comprehensively.
Transmission device has at least one cam disc, feed screw nut and at least one is configured in the driving device on feed screw nut on axis direction.Feed screw nut is axially fixed ground but rotatably support.Described at least one driving device (being called again pin or band untie-sell in mechanical engineering) is configured on feed screw nut like this, makes driving device in rotational motion, also make feed screw nut rotate, and drives feed screw nut.Feed screw nut is converted to rotational motion again the axial motion of leading screw.
For by the continuous rotational motion of driving shaft for change into corresponding vacuum switch tube have carry switch time feed screw nut interrupted rotational motion multiple rotational motions in other words, in the first execution mode, described at least one cam disc has at least one cam,, cam disc has and is different from its circular profile at this.Therefore,, in the rotational motion of cam disc, at least one driving device and cam acting in conjunction join in cam described at least one driving device in the rotational motion of cam disc.Driving device is driven in cam until driving device leaves cam again.
In another embodiment, for change have carry switch time rotational motion, the first cam disc has the first cam and the second cam disc has the second cam.The first cam is in this and described at least one first driving device acting in conjunction and the second cam and described at least one second driving device acting in conjunction.
The especially cam-type step driving device of transmission device being described in these two kinds of execution modes.
In another embodiment, be provided with at least one supporting arrangement for leading screw and feed screw nut, this supporting arrangement is configured to rolling bearing, lead screw transmission device and/or ball screw.Preferably, described at least one supporting arrangement is ball screw.Ball screw is characterised in that, between feed screw nut and leading screw, the rolling element of ball form rolls in rolling groove, thereby guarantees high efficiency motion.With traditional lead screw transmission device or so-called ball-recirculation formula screw nut driven device (
) compare, by the point-like of the ball reduction transmission power that reclines, reduce rolling element roller track wearing and tearing, improve accessible translational speed and realize higher positioning precision.
In another embodiment, be provided with anti-rotation device, it fixes leading screw anti-rotationly.This anti-rotation device can be for example roller bearing or the axial securing means for impeller as sleeve.Certainly, technical staff also can expect other anti-rotation device, prevents leading screw rotation because disclose in the prior art various anti-rotation devices.
In another preferred embodiment, between leading screw and movable contact, compression spring is set, this compression spring is having mechanical type pretension movable contact on the axis direction that carries diverter switch.This is based on a large amount of little electric discharges occurring between movable contact and leading screw having to carry while switching, thereby on these two members, occurs mutual spillage of material, be called contact burning or electrode erosion again.Compression spring should compensate change of distance between the contact causing because of spillage of material and therefore for there being the diverter switch of carrying that controlled condition is provided at this.
In addition, in the axial motion that the force closure that produce by contact burning in order to compensate, each movable contact imports because of leading screw at it causes, the variation of the axial stroke of process also arranges end play between bearing unit and movable contact at the bearing unit for supporting movable contact.
Be according on load tap changer of the present invention advantage, carry the leading screw that each movable contact and each and movable contact are coupled while switching and only carry out axial motion having.Therefore can realize quick, the safe and nonangular opening and closing stroke of vacuum switch tube.Also can guarantee fast travel by the leading screw translational speed of increase described above simultaneously.
Be according to another advantage of on load tap changer of the present invention, by each movable contact and leading screw are axially set, can omit other structural detail of mechanical switch, as rocking bar, circuit breaker etc.
According to of the present invention for comprising that having of at least two vacuum switch tubes carries that the drive unit of diverter switch has rotatable driving shaft and for operating the transmission device of movable contact of corresponding vacuum switch tube.Each leading screw and movable contact mechanical couplings, and leading screw can rotate by transmission device, thus can cause that contact is in the motion having on the axis direction that carries diverter switch.Described transmission device has at least one cam disc respectively with at least one cam, feed screw nut and at least one is configured in the driving device on feed screw nut, described at least one cam acting in conjunction of described driving device and respective cams dish on axis direction.Advantageously, by each movable contact and leading screw are axially set, that is to say without exerting all one's strength and turn to by other mechanical switch, can realize errorless, safety and have fast carry switch.
Brief description of the drawings
Describe the present invention and advantage thereof in detail below with reference to accompanying drawing.Accompanying drawing is as follows:
Fig. 1 is the perspective schematic view in the time opening a way according to a kind of execution mode of on load tap changer of the present invention;
Fig. 2 is the perspective schematic view in closed-loop path according to the on load tap changer of Fig. 1;
Fig. 3 carries the end view of diverter switch in the time opening a way according to having of on load tap changer of the present invention, wherein between leading screw and movable contact, compression spring is set;
Fig. 4 is the end view of diverter switch in closed-loop path of carrying that have according to Fig. 3.
In the accompanying drawings for identical or act on identical element of the present invention and use identical Reference numeral.In addition for clarity sake in each accompanying drawing, only mark as the required Reference numeral of explanation respective drawings.
Specific embodiment
Fig. 1 illustrates according to the perspective schematic view of a kind of embodiment of on load tap changer 1 of the present invention.A vacuum switch tube 3 of this on load tap changer 1 is only shown for the purpose of in this case knowing, but on load tap changer 1 always have at least two vacuum switch tubes 3.Selector 7 is for selecting corresponding windings tap n, the n+1 of adjustable variable-pressure device 9.Have and carry diverter switch 5 and cause that tapping n from connecting is to the switching of the tapping n+1 of corresponding preliminary election.In addition, on load tap changer 1 has rotatable driving shaft 11.The transmission device 15 being connected with driving shaft 11 is for operate mobile contact 17 (being shown specifically at Fig. 3 and Fig. 4), and this movable contact is configured in corresponding vacuum switch tube 3.Driving shaft 11 is with selector 7 mechanical couplings and make continuously selector motion.Meanwhile, there is the accumulator 13 that carries diverter switch 5 to be tightened up.In the time that accumulator 13 is tightened up completely, accumulator release, its energy sudden outburst and have by driving shaft 11 operation the diverter switch 5 of carrying within the scope of millisecond.
According to the present invention, be respectively equipped with a leading screw 19 movable and that be coupled with movable contact 17 in axis A direction, this leading screw can operate by transmission device 15.As shown in Figure 1, leading screw 19 protrudes from plane E in axis A direction compared with Fig. 2, thus the bottom plunger 39 spaced apart (referring to Fig. 3) of movable contact 17 and vacuum switch tube 3.Therefore, this circuit be open circuit and no current flow through.
In the present embodiment, transmission device 15 has the first cam disc 21A and the second cam disc 21B, and feed screw nut 23 and three are configured in driving device 25A, the 25B on feed screw nut 23 in axis A direction.But also can expect other embodiment, it has plural cam disc 21A, 21B or greater or less than three driving device 25A, 25B that are configured on feed screw nut 23.
In order to change the continuous rotational motion of driving shaft 11 rotational motion of feed screw nut 23 into having to carry while switching, the first and second cam disc 21A, 21B have respectively the first and second cam 27A, 27B.Other embodiment also can have more than one cam 27A, 27B on each cam disc 21A, 21B.
Therefore, in rotational motion ω, the second driving device 25B acting in conjunction of at least one the driving device 25A acting in conjunction in the first cam 27A of the first cam disc 21A and two driving devices of feed screw nut 23 and the second cam 27B of the second cam disc 21B and feed screw nut 23.Each driving device 25A, 25B are driven in the rotational motion ω of the first and second cam disc 21A, 21B in corresponding cam 27A, 27B, until driving device leaves corresponding cam 27A, 27B again.
In addition, be provided with at least one supporting arrangement 29 for leading screw 19 and feed screw nut 23.Advantageously, this supporting arrangement 29 is ball screws.Ball screw is characterised in that, between feed screw nut 23 and leading screw 19, the rolling element (not shown) of ball form rolls in rolling groove 31, thereby guarantees high efficiency axial motion.
---also shown in Figure 1ly---according to the another kind of embodiment of on load tap changer 1 of the present invention be provided with anti-rotation device 33, therefore leading screw 19 is non-rotatably fixed.Because technical staff becomes known for the anti-rotation device 33 of leading screw 19, so repeat no more.
Fig. 2 illustrates the perspective schematic view in closed-loop path according to the on load tap changer 1 of Fig. 1.Compared to Figure 1 this be positioned on the height of plane E in axis A direction based on leading screw 19.That is to say bottom plunger 39 mechanical couplings (referring to Fig. 4) of movable contact 17 and vacuum switch tube 3.Therefore closing of circuit and electric current flow through.Other is visible feature and Reference numeral is consistent with according to the on load tap changer 1 of Fig. 1 and therefore referring to Fig. 1 in the figure.
Fig. 3 illustrates according to having of on load tap changer 1 of the present invention and carries the end view (referring to Fig. 1) of diverter switch 5 in the time opening a way, between leading screw 19 and movable contact 17, compression spring 37 is set at this, this compression spring 37 is provided for having in the axis A direction of diverter switch 5 of carrying mechanical type pretension movable contact 17 and avoiding electrode erosion.
As mentioned above, electrical contact 17 comprises top plunger 37 and other member (not shown) for conducting electricity.No longer describe electrical contact 17 in detail based on frame mode well known in the prior art.Fig. 3 is also illustrated in each vacuum switch tube 3 and is provided with bottom plunger 39.Due to spaced apart with the bottom plunger 39 of vacuum switch tube 3 at this movable contact 17, so circuit is opened a way.
Other is visible feature and Reference numeral is identical with Fig. 1 and Fig. 2 and therefore referring to Fig. 1 and 2 in the figure.
Fig. 4 illustrates the end view of diverter switch 5 in closed-loop path of carrying that have according to Fig. 3.Because bottom plunger 39 mechanical couplings of movable contact 17 and vacuum switch tube 3, so electric current flows through.The variation of the axial stroke of process in the axial motion that the force closure that produce by contact burning in order to compensate, each movable contact 17 imports because of leading screw 19 at it causes arranges end play 43 at the bearing unit 41 for supporting movable contact 17 between bearing unit 41 and movable contact 17.
The present invention is described with reference to a kind of preferred embodiment.But technical staff can carry out modification and improvement certainly in the case of not leaving the protection range of claims.Embodiment described above is only for claimed instruction is described, but it is not limited to these embodiment.
Reference numerals list
1 on load tap changer
3 vacuum switch tubes
5 have the diverter switch of carrying
7 selectors
9 adjustable variable-pressure devices
11 driving shafts
13 accumulators
15 transmission devices
17 movable contacts
19 leading screws
First, second cam disc of 21A, 21B
23 feed screw nuts
25A, 25B driving device
First, second cam of 27A, 27B
29 supporting arrangements
31 rolling grooves
33 anti-rotation devices
35 compression springs
37 top plungers
39 bottom plungers
41 bearing units
43 end plays
A axis
E plane
ω rotational motion
The tapping that n connects
N+1 can preliminary election tapping
Claims (10)
1. one kind comprises the on load tap changer (1) of at least two vacuum switch tubes (3), have: for selecting the corresponding windings tap (n of adjustable variable-pressure device (9), n+1) selector (7), for from connect tapping (n) be switched to corresponding preliminary election tapping (n+1) have carry a diverter switch (5), with the rotatable driving shaft (11) of described selector (7) mechanical couplings with for operating the transmission device (15) of movable contact (17) of corresponding vacuum switch tube (3), it is characterized in that, be respectively equipped with one in axis (A) direction movable and with the leading screw (19) of described movable contact (17) coupling, this leading screw can be by described transmission device (15) operation.
2. on load tap changer according to claim 1 (1), it is characterized in that, described transmission device (15) has at least one cam disc (21A, 21B), a feed screw nut (23) and at least one is configured in the driving device (25A, 25B) on described feed screw nut (23) in axis (A) direction.
3. on load tap changer according to claim 2 (1), it is characterized in that, described at least one cam disc (21A, 21B) is with at least one cam (27A, 27B), thus at least one driving device (25A, 25B) and described cam (27A, 27B) acting in conjunction in the rotational motion (ω) of cam disc (21A, 21B).
4. on load tap changer according to claim 2 (1), it is characterized in that, the first cam disc (21A) with the first cam (27A) and the second cam disc (21B) with the second cam (27B), described at least one the second driving device (25B) acting in conjunction of described at least one the first driving device (25A) acting in conjunction of the first cam (27A) and described feed screw nut (23) and the second cam (27B) and described feed screw nut (23).
5. according to the on load tap changer one of the claims Suo Shu (1), it is characterized in that, described transmission device (15) is cam-type step driving device.
6. according to the on load tap changer one of the claims Suo Shu (1), it is characterized in that, be provided with at least one supporting arrangement (29) for described leading screw (19) and described feed screw nut (23), this supporting arrangement is configured to rolling bearing, lead screw transmission device and/or ball screw.
7. according to the on load tap changer one of the claims Suo Shu (1), it is characterized in that, be provided with anti-rotation device (33), it fixes described leading screw (19) anti-rotationly.
8. according to the on load tap changer one of the claims Suo Shu (1), it is characterized in that, between described leading screw (19) and described movable contact (17), compression spring (35) is set, this compression spring has in axis (A) direction of diverter switch (5) of carrying mechanically a movable contact (17) described in pretension described.
9. one kind for comprising the drive unit of diverter switch (5) of carrying that has of at least two vacuum switch tubes (3), there is rotatable driving shaft (11) and for operating the transmission device (15) of movable contact (17) of corresponding vacuum switch tube (3), it is characterized in that, each leading screw (19) and described movable contact (17) mechanical couplings, and described leading screw (19) can rotate by described transmission device (15), thereby can cause that described contact (17) is in the described motion having in axis (A) direction of carrying diverter switch (5).
10. drive unit according to claim 9, it is characterized in that, described transmission device (15) has at least one and in axis (A) direction, is configured in the driving device (25A, 25B) on described feed screw nut (23), described at least one cam (27A, 27B) acting in conjunction of described driving device and respective cams dish (21A, 21B) with the cam disc (21A, 21B) of at least one cam (27A, 27B), feed screw nut (23) and at least one respectively.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210202327 DE102012202327B4 (en) | 2012-02-16 | 2012-02-16 | On-load tap-changer with at least two vacuum interrupters and drive for a diverter switch with at least two vacuum interrupters |
| DE102012202327.5 | 2012-02-16 | ||
| PCT/EP2013/050608 WO2013120641A1 (en) | 2012-02-16 | 2013-01-15 | On-load tap changer having at least two vacuum interrupters, and drive for a load changeover switch having at least two vacuum interrupters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104205273A true CN104205273A (en) | 2014-12-10 |
Family
ID=47563502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380015910.0A Pending CN104205273A (en) | 2012-02-16 | 2013-01-15 | On-load tap changer having at least two vacuum interrupters, and drive for a load changeover switch having at least two vacuum interrupters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150008104A1 (en) |
| EP (1) | EP2815413B1 (en) |
| CN (1) | CN104205273A (en) |
| DE (1) | DE102012202327B4 (en) |
| HK (1) | HK1201635A1 (en) |
| WO (1) | WO2013120641A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847609A (en) * | 2017-02-10 | 2017-06-13 | 山东民生电气设备有限公司 | A kind of miniaturization for on-load voltage regulating switch switches switch module |
| CN111587468A (en) * | 2018-03-06 | 2020-08-25 | 赖茵豪森机械制造公司 | On-load tap changer and transformer for local supply network with on-load tap changer |
| CN113113245A (en) * | 2021-03-01 | 2021-07-13 | 北京航天控制仪器研究所 | Split type on-load tap-changer |
| CN116057657A (en) * | 2020-10-21 | 2023-05-02 | 日立能源瑞士股份公司 | Switching system for an on-load tap changer, on-load tap changer and method for switching tap connections of an on-load tap changer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3989253A1 (en) | 2020-10-26 | 2022-04-27 | Hitachi Energy Switzerland AG | System for controlling a vacuum interrupter for a power diverter switch, a power diverter switch and an on-load tap changer |
| EP4084032A1 (en) | 2021-04-28 | 2022-11-02 | Hitachi Energy Switzerland AG | Vacuum interrupter assembly for a power diverter switch, power diverter switch for a transformer load tap changer and transformer load tap changer |
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|---|---|---|---|---|
| GB673804A (en) * | 1950-12-11 | 1952-06-11 | Asea Ab | Improvements in or relating to on-load tap changers for transformers |
| EP0355814A2 (en) * | 1988-08-26 | 1990-02-28 | Aichidenki Kabushiki Kaisha | A force storage mechanism in an on-load tap changer |
| DE4011019C1 (en) * | 1990-04-05 | 1991-12-05 | Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De | |
| DE4231353A1 (en) * | 1991-09-19 | 1993-04-01 | Toshiba Kawasaki Kk | Stage switch changing coils of power electrical transformer - couples adjacent stages to tapping contacts with movable contact engaging common contact and having current limiting resistor. |
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| CN101009155A (en) * | 2006-01-27 | 2007-08-01 | 株式会社东芝 | Tap switching device when loading |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3396248A (en) * | 1966-12-12 | 1968-08-06 | Mc Graw Edison Co | Tap changer |
| JPS5595308A (en) * | 1979-01-12 | 1980-07-19 | Fuji Electric Co Ltd | On-load tap changer |
-
2012
- 2012-02-16 DE DE201210202327 patent/DE102012202327B4/en not_active Expired - Fee Related
-
2013
- 2013-01-15 CN CN201380015910.0A patent/CN104205273A/en active Pending
- 2013-01-15 WO PCT/EP2013/050608 patent/WO2013120641A1/en active Application Filing
- 2013-01-15 EP EP13700559.1A patent/EP2815413B1/en not_active Not-in-force
- 2013-01-15 US US14/373,411 patent/US20150008104A1/en not_active Abandoned
-
2015
- 2015-02-27 HK HK15102012.3A patent/HK1201635A1/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB673804A (en) * | 1950-12-11 | 1952-06-11 | Asea Ab | Improvements in or relating to on-load tap changers for transformers |
| EP0355814A2 (en) * | 1988-08-26 | 1990-02-28 | Aichidenki Kabushiki Kaisha | A force storage mechanism in an on-load tap changer |
| DE4011019C1 (en) * | 1990-04-05 | 1991-12-05 | Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De | |
| DE4231353A1 (en) * | 1991-09-19 | 1993-04-01 | Toshiba Kawasaki Kk | Stage switch changing coils of power electrical transformer - couples adjacent stages to tapping contacts with movable contact engaging common contact and having current limiting resistor. |
| WO1994002955A1 (en) * | 1992-07-16 | 1994-02-03 | Maschinenfabrik Reinhausen Gmbh | Step switch |
| US5594223A (en) * | 1993-12-07 | 1997-01-14 | Fuji Electric Co., Ltd. | Vacuum switch bulb type change over switch for on-load tap changer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847609A (en) * | 2017-02-10 | 2017-06-13 | 山东民生电气设备有限公司 | A kind of miniaturization for on-load voltage regulating switch switches switch module |
| CN111587468A (en) * | 2018-03-06 | 2020-08-25 | 赖茵豪森机械制造公司 | On-load tap changer and transformer for local supply network with on-load tap changer |
| CN111587468B (en) * | 2018-03-06 | 2024-09-06 | 赖茵豪森机械制造公司 | On-load tap changer and regional power supply network transformer with on-load tap changer |
| CN116057657A (en) * | 2020-10-21 | 2023-05-02 | 日立能源瑞士股份公司 | Switching system for an on-load tap changer, on-load tap changer and method for switching tap connections of an on-load tap changer |
| CN116057657B (en) * | 2020-10-21 | 2024-03-08 | 日立能源有限公司 | Switching system for an on-load tap changer, on-load tap changer and method for switching tap connections of an on-load tap changer |
| US12033825B2 (en) | 2020-10-21 | 2024-07-09 | Hitachi Energy Ltd | Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer |
| CN113113245A (en) * | 2021-03-01 | 2021-07-13 | 北京航天控制仪器研究所 | Split type on-load tap-changer |
| CN113113245B (en) * | 2021-03-01 | 2023-12-12 | 北京航天控制仪器研究所 | Split type on-load tap-changer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012202327A1 (en) | 2013-08-22 |
| WO2013120641A1 (en) | 2013-08-22 |
| HK1201635A1 (en) | 2015-09-04 |
| DE102012202327B4 (en) | 2015-01-08 |
| EP2815413A1 (en) | 2014-12-24 |
| US20150008104A1 (en) | 2015-01-08 |
| EP2815413B1 (en) | 2015-10-07 |
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Application publication date: 20141210 |